Which of the following is true of stratified sampling?

A. can only capture limited perspective
B. delineates all populations
C. is not part of quantitative research
D. selects from strata


Ans: B

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Identify the threats to internal validity illustrated in the example below. Some students left the experimental program because of a conflict with sports

a. Instrumentation b. Experimental mortality c. Selection-maturation interaction d. Statistical regression e. Diffusion

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According to the textbook, whose research focused on the motivational principles that supported students' motivation to learn thatwas suitable for teachers to apply in the classroom?

a. Allan Wigfield b. Jere Brophy c. Carol Dweck

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In the constructivist model, the teacher:

a. emphasize order and routine in the classroom and daily schedule b. teachers lead students to understanding how various contextualized problems may be solved c. present the learning of tasks in random order d. add the extraneous environmental stimuli to enrich the learning experience

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Which of the following is not a characteristic of effective interpersonal feedback?

A. Descriptive B. Specific C. Evaluative D. Concise

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